Burner for steam boilers and superheaters.



A. E. MUELLER.

BURNER FOR STEAM BOILERS AND SUPERHEATERS.

APPLICATION FILED JUNE 9.191s.

1,226,570. Patented May 15, 1917- 2 SHEETS-SHEET I.

A. E. MUELLER. BURNER FOR STEAM BOILERS AND SUPERHEATERS. APPLICATION FILED JUNE 9. 1916.

1,226,570. w Patented May 15, 1917.

2 SHEETS-SHEET 2.

UNITED AUGUST n. MUELLER, or cm'cnoo; rumors, @Ssionmt-bkofipdnfin 'IO IIIRUBY AND ONE-THIRD TO JOI IN BURNER FOR s'rnan nornngs Ann svrmnmwaasf Application and June 0, 191a semi No. 102,027.

To all 10150777121 may concern:

Be it known that I, AUGUST E. MUELLER, a citizen of Argentina, South America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Burners for Steam Boilers and Superheaters; and I do hereby declare that the fOllOWiIl? is a full, clear, and exactflescrip'tion thereo refcreme being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this L'QlfiCZliIlOl]. This invention relates burners for or both, adapted to be heated by a liquid fuel such as crude etroleuln or petroleum distillates combinab e with a gaseous oxygen curl'l zfl'. l

to improvements in ,1, Running the objects of the invention is to or lugs 24'. Said frame 24-1'meyres 7 provide a burner for this and analogous suitable supports, as' 'the -I-l')a"" 2 'ilirposes, which is simple and economical shown; y ""1" in design and which is economical to er- The fines are provided with a ale and so arranged to readily a'apt heat radiating fins 26 which exten U itself to a compact boiler structure so as to water space of the boilei';,"iind" s1 80 occupy small space and to be highly efficient space may, if desired, be fil-ledo for producing steam. filled witha mass of""heat''c(') nd Q Other objects of the invention are to proments, such, for inst'm1cfe-,'iis sl in 1- I Yil'lti an arrangement of. a burner or furnace copendin'g application; for Unit d, ,st ligsf will a boiler or boiler and superheater so Letters Patent Serial No. 96, 18d pnjtl' elj 86 arranged as to enable the parts to be very llth day. of May,1916;. r-mnpnctly assembled and to. efficiently apply 29 designates a capo-heater (:lllll the heated products 0 combustion to the is arranged above the'boiler, surfaces of the lgoiler ahd superhenter, and over the neck For= throat 17 of the invention consists; in the combination arch. Saidsuperheatr 'cham'b'e ,90 and arrangement of; the parts shown .in shown, comprises mapenayifd-l tho drawings and described in the specifi;v convex plates 30, which a cation and is pointed out in the appendedvgether at their e'dges by rive claims. suitable fastening devices,"

4o shown in the drawingsze i packing-unity b fiinter Figure l. is a vertical sectional view of marginal po'i'tionseofjhe plat" a boiler embodying my invention. steanrtightjoints; The fihltc Fig. is a plan View thereof, withthe reinforcdby stay-no! parts broken away. extend abetween and or, f?

in said drawings, 10 rd esi'gnates fltheshell plates.'-' .Dry steamisrdb'ndiio oi the boiler which, preferablyand ushere llpcrlieater' through "a outlet in shown, is mndc'ol'ilong and is provided proterably the outh f hid; with a top wall 11 and a bottom wall 12.,,-vi,led with ascreen f35 t l I f y l l designates a burner arch arranged within; 'ticl'es==froi n.bassingbut; Si e .50 the shell I0 and whichconstitutes the inner-f 'ohambe zwith -tlfe dry Th wall of the hoilerztowhich lat perhcater 'hnfn' e H 11i iiifcl:i l r"l,t'gi lj l is applied to heat they will; L l The said burner ar 11' i .,I -g epllwl'likmofflionhefltih g t 568% ii (i tom, is flanged at'its upj'ioriind ower ends tend between the top-wall 11 of the boiler to fit tho upper and lower walls, respectively, and the lower plate 30 of the slqserhcater I o, Haunt, .m, Born or-cH-IcAqo Jnmm's Specification of mm; Patent.

steam boilers andsuperheaters -w wioiiki "1+ nmon romaine, 5 151mm i v L31 of the-boiler shell and-lisiilttac hedi by rivets 15,"or other""suitiili means, to producej water-tig upper end ofsahl -burnerdrc with a neck ersona? when the space abovethe boiler. ,Su' r "l 1 i' the flanged lower end 'of the"b'iirnei' itfih'f a central opening '18 through, whiclij-lth burner, .herelnafter to be desctibdifittids. The boiler 10, as'herein shown, s of" d flue type, vertically arranged 'flifes extending between the top and of i the boiler and ',being flangeifl the or otherwise fastened thereto. [The bestrengthenedbytwo or inor nal, double flanged ribs 22, 22 weenie: around the same, nhd a're riveted Ftli'eheti;

Said boiler-mag bes'u-pport'd y ah bpe frame24 throng the mediamo br rclts s ape; the larger Iower'end of which is,

v 40 the mixinghc'hnmberfwal arrhv The'wall'of the d" V coincides. inrurvature with the-wall of. the burner arch." The arrangement-is snohthat e15v there is formed between saidfdom'e and ing"x lmmber a .ipnssnge 55- and between-said; doule. and urchin combustion: chamber; 56. The said vdometerminates .at its upper end- 55 lower-sklej-with burnor'opemngs- KSQ' eg throughla P1116560. 'Anaoxygembearin diuin,. simhias air orfsteam, for admgtti'ire withth'egliquid fuel, is also sqppliedcto sold w 66 mi iging fihambenand, qonvementlyp snd ies port's toprqduoe steam-tightjointS.

" The'boi'ler'and superheaterchamber are protected from the surroundin cooler alr and are upset orotherwisesecure'd to said y"meansof a 'housing 38 which is 'open at its bottom and' is closed at its; top bya wfell 39, thelatterhaw in a, suitable opening for the passage of the r'y steam pipe 34. The

, said housing isherem shown as supported Qon a bbiler.by means of'brackets or lugs-40 attached to the inner sidesiof. the housingnd adapted :to rest upon thelo verrei n forcingribs 22-of'theboiler; H ;Thegwater-."inthe boiler is heated; and heat is applied to su 'ierheat the steam there.

by roduced, by a form of liquid-fuel bumer iwh chis specially adapted to conform-to the combi-nation'of the boiler and s11per.-'

heater elements, and which is madeas fol- {5;desi ates a floor plate which ,is also .supporte; on the members LBand. prefqerublyattached, as by means ,of 'bracke ts I .gl'fi 'tothesupporting frame Said 25 plate. is"; provided withnumerous openings to permit air to ass fre'el upwardly 'there-' throun'hi It is a so provi ed eentrally with araised portion 4 8 and is formed between the portions-11d]. the lower level thereof so with i an intermediatefplatfonn 49,. The

raised dome-like portion 48 is provided with I a central starting burner '50? toreceive a liquid tnelsupfply pipe 551; 'The'intermedi ate raised plat orrn li supports a perforated 85 fuel mixing 'Qch'amber' 53, centrally; into Whichsaid startingburiier extends i V ates a. perforated dome of general'eom ranged outside offthe "lar' r lower" en' 0 and the n end. of which extends in hallow-g;

inn-neck portion 5'7 which isfsunnounted'.

a hgillowbhruer' head; 5S,=that "is arm-r just below the. lower :plate sf tha'su" o I head. is provided at itspeiiphery and pn which the; fuel mixture may pass 1 late 4 The mixture is 'i "-pr'eferablyi-i will preferably be ;piovided I insulation lininggbmj-to pmen iheater.f29.;, .Theu per-wall offsaid hea' '58} l' I isl' preterablysoli or iniperfo'rate 'entl' said pdizgtegtto tractors ,fm'm the burnerheud ,;and,. upon ignition to constitute a flat horizontal flame'bod'y is 'distributembeueath and=jimpinges 0'0 the.loiver-walloff-the superheatenifi,"

macs-1o i herein shoivn, the oxygen-bearing nie'diuni may be delivered thereto through a pipe 61 which surrounds the fuel. pipe 60. Ar-

the starting burneri5'0 i's'a rotary 'mixiu ranged within the mixing-phamber above;

element. having the form of afan 63; the

shaft Gi of which is 'rotatively mounted in a suitable bearing in the upper wall'of the mixing'chamber. Thesaid'fan'63 islocated.

in the path of the incoming fuel delivered through the pipe 60 and alsoin the path ofthe' oxygen-bearing medium under pressure,

sothat' the fau'is rapidly rotated while the 7 fueland oxygen-bearing medium is delivered .to themixing chamber, with the efiect' to intimately interminglethe constituents of the fuelso as to produce a free burning m xture.- The intermixed'fuel' constituents are'discharged through the perforations of the walls of the -mix1ng cha,mber into the dome '54, and are by said dome further broken up or. intermingled and distributed to the annular space 56 where they are ignited, the

heat of the productsof combustion im ing ing against'said arch. =Afp0rti0n 0 the rhlxture isdirected through pipes 67, which lead from the space 55, into one or more an- 'nula-r' burner pipes. 68 Vhich are arranged beneath the boiler around the central raised 'platform'49 said pipes discharging'the mixture through; perforations at the upper sides thereof toward the bottom'fof the'boiler.

thgaboliler and through the, urner arch an '1erflues:-'

i R ifiam fl r-Plate s g h atfrom the;

A at pn gma b' i i l we rdly: around H ited in the-;ooml:a1'stion' chamber above said pipes and the products;-

of combustion play against the lowerqwallf- .O'f theboilef and escape u tinny be directed to; -t e ..bqmars1-g I 71,throiigh\ themefdiumof whili he have become heated the valves of the fuel and air or steam delivery pipes 60;. 61; re-

s icctivelv are wood and the air or other burner 'oxygen bearing medium, under pressm'e is delivered against the mixing: fan )3 with such forceas to rapidly rotate it and thereby intiinateIt interlr' the liquid fuel. with the .coii'i bustion supporting oxygen. This mixture 'fillsthe dome H. A. portion of it is led by the pipi (3T into the connected burner 'Jipes 68 where it is ignited. to prodime a f ame which plays on the bottom wall of' tlie boiler. and escapes upwardly around the. outer side of the boiler and through tli fines and con'ibustion chan'iber 56. A tion of the mixture also escapes through iiierforated dcn'ie 54. into the passage 56 e/it'is ignited to play upon the arch A, rther portion of said mixture irougl'i the "rerforated.head and ignited at the discharge openings 59 to d rectly heat the superheatcr chamber or. casing. The products of coi'nljuistion from the cl'ianiber :56 also pass beneath and around the supeiii'l'ieater chamber and among tl l' 'ert 'from the burner serves to raise the perature of the water to prodiu'e steam and also to su 'ierheat the steam after it passesfrom the steam. space of the boiler iiito thesuper-heater chaniber, so that the a d, ivered tl'irough the pipe '54. a. dry su 'ierheatcd steam. It will. be noted. that the construction of the boil and. superheater and the construction of the burner are such as to peculiarly .inteij-$i. (fl:.i .it one ,to the othe" and such as t ,a iply the heat of the burning mixture bOtl'lk'l llmlililllg surfaces of the boiler and super ater in. amanner to derive the maximuml.. enefit of the heat in the prraluction of dry suiiimrlieated steam. It will be furthermore observed that the construction of the in -rclated parts of the boile" and such as to enable the parts to be vet") readily assemljiled and to be produ' id by simple machine opera tions. and further. to produce a. very cmn iiact boiler construction. I clain'i as my invention z- 1. .A. bin-oer for a steam. boiler comprising burner arch arrai'iged to constitute the inner wall. f the boiler and open at its top and limttom: a perforated fuel mixing chamber centrally below said arch a perforated mixing: and distrilmting dome surrounding the mixin chandler and extendin into the h i b arch to provide between said. chamber and dome an annular passage amlbctween the .(ltlll'li'. and arch a tamibustioi'i chau'iber;

low the .i'neai'ae for dircctiiu: liquid fuel and oxygen to the mixing clannl') and. for mixing the fuel run Maui's tlltltlfl: a burner pipe bebnrncr arch and co: "nmications be connecting pipes 36. The heat thus de tween said burner pipe and passage.

2. A burner for a steam boiler comprising a burner arch arranged toconstltute the inner wall of. the boiler and openat' its top and bottom; a perforated fuel mixing chamber centrally below said arch; a perforated dome surrounding the fuel mixing chamber and. extending into the arch, to provide :between. the same and said arch a combustion chamber; means for dirertinp fuel constitu ing chamber and extending into the arch,

with a combustion chamber between the dome' and arch: means for directing'fuel ctau'stituents to the mixing chamber and for mixing them therein and a burner head extending upwardly from. said dome and through the open upper end of the burner arch toheat a supeid'ieater. i

A burner for a. steam boilercom irising a burner arch arranged centrally oi the boiler and open i at its top and bottom; a ticrforated fuel mixing chamber arranged centrally below said ,arch; a' perforated dome surrounding the fuel-mixing chamberand extending into the arch to provide between sid chamber and dome an annular passage and between the domeand arch a.

combustion chamber; means for directing.

fuel constituents to the mixing chamber and for mixing them therein; a burner pipe or pipes surrounding said mixing chamber below the arch, and pipes connecting said burner pipes with the annular passage between the mixing chamber and said dome.

5. A btirner for a steam boiler comprising a burner arch constituting the imier wall of the boiler and open at its bottom. and at its top; a mixing chamber at the lower open end of said arch; a perforated domesurrounding said mixin chamber and extei'iding into said arch; a liquid fuel supply pipe leading intothe mixing chamber; an oxygen-bearing medium supply pipe leading also into said. chamber, and means within the chamber for mixing the fuel constituents.

6. A burner for a steam boiler comprising a burner. arch constituting the inner all ofthe boiler and open at its bottom and at its top a mixing chamber at the lower open end of said arch; a perforated dome sorrcuinding said mixing chamber and extending into said arch; a. liquid fuelsupply pipe leading into the mixing chamber;

said annular 'an oxygen-bearing medium suppl pipe leading also into; said chamber, an a rotative' mixing fan located within said mixi'n'g chamber against which the fuel constituents under pressure aredirected.

T7. A burner for a steam boiler comprisa burner arch constituting the inner wall'of the boiler and openat its bottom and at its top; a mixing chamber at the,

lower open end of said arch; means to conduct fuel mixture from the mixing chamber to the bottom of the boiler and to the burner arch; a liquid fuel supply pipe leading into the mixing chamber; an oxygen-bearing medium supply pipe leading also into said chamber; a rotative mixing fan located within saidvmixing chamber against which the fuel constituents under'pressure are directed, and a'sta-rting burner within said mixing chamber located beneath said fan.

8. A burner for a steam boiler comprising a burner arch constituting the inner wall of the boiler and 0 at its top; a mixing c amber at the lower open end of said arch; a burner pipe or pipes at the bottom of the arch; means to conduct fuel mixture from the mixing chamber to said burner piples; a liquid fue supply pipe leading into t e mixing chamber; an oxygen-bearing medium supply pipe leading also to said chamber; a rotative mixing fan located. within said mixing chamber against which the fuel constituents under pressure are directed and a erforated dome surrounding said m xing 0 amber and extending into said burner arch and forming between the same andthe mixing chamber annular passage through which the fuel mixture is conducted to said burner pipes, and forming also between the dome and the arch a combustion chamber.

v9. A burner for a steam boiler comprisa burner archconstituting e inner wall of the boiler and 0 en at its bottom and at its to a mixing 0 amber at the lower open en of said arch; a burner pipe or n at its bottomand pipes at the bottom of the arch; means to conduct fuel mixture from the mixing chamber to said burner'pipes; a liquid fuel supply pipe leading into the mixing chamber; an oxygen-bearing medium supply pipe leading also to said chamber; a rotative mixing fan located within said mixing chamber wall of the boiler and open at its bottom and at its top; a mixing chamber at the lower open end of said arch; a burnercpipe or ipes surrounding and arranged "below sai mixing chamber; aliquid fuel a pipe leading into the mixingchamber; an I oxygen-bearing medium supply pipe also leading into said chamber; a perforated dome surroundin the mixing chamber and extending into said burner arch and 'formmg between the same and the mixing chamher an annular pasage through which the fuel mixture is conducted to said" burner pipes, and forming also between the dome and the arch a combustion chamber; and a hollow neck extending upwardly from the dome and surmounted by a burner head.

In testimony whereof, I have hereunto set my hand at Chicago, Illinois, this 1st day of June, 1916.

' AUGUSTE. MUELLER. Witnesses:

W. L. HALL, M. Gna'rnrmn ADI. 

